High contrast grating

Web9 de ago. de 2024 · Very recently, high-contrast grating (HCG) based biosensor with extremely simple excitation system, high sensitivity, and rapid response time have been … Web1 de set. de 2024 · Broadband reflecting mirrors with high reflectivity are crucial for constructing a VCSEL cavity with a high Q factor. High-contrast grating (HCG) made of two materials with high contrast index exhibits broadband with high reflectivity by proper design of the geometrical parameters such as the grating period, the grating thickness …

High-Contrast-Grating Resonant-Cavity-Enhanced Photodetector

Web19 de mai. de 2024 · In this work, we propose and numerically investigate a two-dimensional microlaser based on the concept of bound states in the continuum (BIC). The device … Web30 de jan. de 2024 · A high-contrast grating (HCG) is a label-free optical biosensor with a spectral linewidth of approximately 500 pm and is sensitive to ligand-induced changes in surface properties . The small footprint and high efficiency of an HCG structure can be suitable for wavelength conversion in chip-scale integrated optics. chinese new year in tamil https://oianko.com

Long-Wavelength VCSEL Using High-Contrast Grating

Web1 de jan. de 2024 · A high-precision microdisplacement sensor based on zeroth-order diffraction of a single-layer optical grating is reported. Laser grating interference occurs when part of the laser is reflected diffraction by the grating and another part is vertically reflected back by a mirror and diffracted again by the grating, thus generating optical … WebWikipedia Web26 de mar. de 2024 · Recent progress of vertical-cavity surface-emitting lasers (VCSELs) using high contrast grating (HCG) and their applications will be reviewed. Replacing distributed Bragg reflectors (DBR) with a ultra-thin high contrast grating enables wavelength swept and far field pattern engineering. We will discuss review the basic … grand rapids michigan health department

Enhanced Absorption of a Patterned Thin Germanium Layer as a High …

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High contrast grating

High contrast gratings for integrated optoelectronics IEEE …

Web1 de set. de 2012 · An electrically pumped III-V - silicon heterogeneous VCSEL is demonstrated using a high-contrast grating (HCG) reflector on silicon. CW output … Web2 de ago. de 2010 · The phenomenon of ultra high reflectivity is explained to be a destructive interference effect between the two grating modes. Based on this phenomenon, a design algorithm for broadban … Theoretical analysis of subwavelength high contrast grating reflectors Opt Express. 2010 Aug 2;18(16):16973-88. doi: …

High contrast grating

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Web12 de nov. de 2015 · First, the high-contrast grating and complicated structure were applied in reference 14. While in this paper, the low-contrast grating and simple structure are used to cancel the 0th order. Web16 de fev. de 2016 · Apart from the MGs, high-contrast gratings (HCGs) consisting of Bragg stack of high-index and low-index material blocks with subwavelength thicknesses …

WebTo realize quasi-BIC lasing, we selected the grating parameters ( T = 230 nm, F = 0.50, and Λ = 530 nm) which can provide the highest possible reflectivity (as marked in Figure 3 ), … WebReflective Optical Phase Modulator Based on High-Contrast Grating Mirrors. Yu Horie, Amir Arbabi, and Andrei Faraon. Author Information. Find other works by these authors. CLEO: Science and Innovations 2014. San Jose, California United States. 8–13 June 2014. ISBN: 978-1-55752-999-2. From the session.

Web12 de fev. de 2013 · Long-Wavelength VCSEL Using High-Contrast Grating. Abstract: Recent advances in high-contrast grating (HCG) vertical-cavity surface-emitting lasers … WebPerson as author : Pontier, L. In : Methodology of plant eco-physiology: proceedings of the Montpellier Symposium, p. 77-82, illus. Language : French Year of publication : 1965. book part. METHODOLOGY OF PLANT ECO-PHYSIOLOGY Proceedings of the Montpellier Symposium Edited by F. E. ECKARDT MÉTHODOLOGIE DE L'ÉCO- PHYSIOLOGIE …

Web14 de abr. de 2024 · Using a high-efficiency grating interferometer for hard X rays (10-30 keV) ... High-sensitivity grating-based phase-contrast computed tomography with incoherent sources. L Birnbacher;

Web1 de dez. de 2014 · High contrast gratings (HCGs) have emerged as an exciting new tool for achieving optical features such as broadband mirrors, planar lenses, and high quality factor resonators. Of particular use for VCSELs is a broadband mirror. grand rapids michigan halloweenWeb4 de fev. de 2024 · A novel optical antenna for optical phased arrays is proposed and simulated. A high-contrast grating structure is used to achieve extremely efficient emission. The emission efficiency is as high as 93.94% at 1.55 μm, which exceeds 50% in a range of wavelength from 1.48 μm to 1.62 μm. The antenna can … grand rapids michigan greyhound bus stationWeb1 de jul. de 2009 · Abstract and Figures. Recent advances in a single-layer 1-D high-index-contrast subwavelength grating structure are reviewed. Its incorporation into a vertical … chinese new year in sydney 2023Web12 de jan. de 2024 · Here, we create on-chip waveguides from pairs of high-index-contrast silicon gratings for lateral confinement by reflection at grazing incidence and a thin … chinese new year in vegasWeb9 de jun. de 2013 · Abstract. A new measurement scheme to characterize MEMS-VCSEL linewidths is demonstrated. Linewidth in the range of 40~60MHz is measured for 1550-nm high contrast grating VCSELs. We identify key ... chinese new year introduction for kidsWeb13 de jun. de 2024 · Our high-contrast gratings (HCGs) achieve color tunability by changing the wavelength-dependent birefringence via electrodeposited Cu inside the … chinese new year in usWeb29 de set. de 2009 · Abstract: We review recent advances in subwavelength high-index-contrast gratings (HCGs) and a variety of applications in optoelectronic devices, … grand rapids michigan historical society